/* eslint-disable */
/**
 * @requires window.SuperMap/Layer/CanvasLayer.js
 * @requires window.SuperMap/Layer/Grid.js
 * @requires window.SuperMap/Tile/Image.js
 */
/**
 * Class: window.SuperMap.Layer.Tianditu
 * 天地图服务图层类。
 *     用于显示天地图的地图服务，使用<window.SuperMap.Layer.Tianditu>的
 *     构造函数可以创建天地图图层，更多信息查看：
 *
 * Inherits from:
 *  - <window.SuperMap.Layer.CanvasLayer>
 */
window.SuperMap.Layer.Tianditu = window.SuperMap.Class(window.SuperMap.CanvasLayer, {
    /**
     * APIProperty: layerType
     * {String} 图层类型.(vec:矢量图层，img:影像图层，ter:地形图层)
     */
    layerType: 'vec', //(vec:矢量图层，cva:矢量标签图层，img:影像图层,cia:影像标签图层，ter:地形,cta:地形标签图层)
    /**
     * APIProperty: isLabel
     * {Boolean} 是否是标签图层.
     */
    isLabel: false,
    /**
     * Property: attribution
     * {String} The layer attribution.
     */
    attribution:
        "Data by <a style='white-space: nowrap' target='_blank' href='http://www.tianditu.com'>Tianditu</a>",
    /**
     * Property: url
     * {String} 图片url.
     */
    url:
        'http://t${num}.tianditu.com/DataServer?T=${type}_${proj}&x=${x}&y=${y}&l=${z}&tk=8177363d1b5e8f65ab85876dd85ca41f',
    //cva_url:"http://t${num}.tianditu.com/DataServer?T=cva_${proj}&x=${x}&y=${y}&l=${z}",
    /**
     * Property: zOffset
     * {Number} 图片url中z值偏移量
     */
    zOffset: 1,
    /**
     * APIProperty: dpi
     * {Float} 屏幕上每英寸包含像素点的个数。
     * 该参数结合图层比例尺可以推算出该比例尺下图层的分辨率.默认为96。
     */
    dpi: 96,
    /**
     * Constructor: window.SuperMap.Layer.Tianditu
     * 创建天地图图层
     *
     * Example:
     * (code)
     * var tiandituLayer = new window.SuperMap.Layer.Tianditu();
     * (end)
     */
    initialize: function(options) {
        var me = this;
        me.name = '天地图';
        //        options = window.SuperMap.Util.extend({
        //            maxExtent: new window.SuperMap.Bounds(
        //                minX, minY, maxX, maxY
        //            ),
        //            tileOrigin:new window.SuperMap.LonLat(minX, maxY),
        //            //maxResolution:maxResolution,
        //            //minResolution:minResolution,
        //            resolutions:resolutions,
        //            units:me.units,
        //            projection:me.projection
        //        }, options);
        window.SuperMap.CanvasLayer.prototype.initialize.apply(me, [me.name, me.url, null, options]);
    },
    /**
     * APIMethod: clone
     * 创建当前图层的副本。
     *
     * Parameters:
     * obj - {Object}
     *
     * Returns:
     * {<window.SuperMap.Layer.Tianditu>}  新的图层。
     */
    clone: function(obj) {
        var me = this;
        if (obj == null) {
            obj = new window.SuperMap.Layer.Tianditu(me.name, me.url, me.params, me.getOptions());
        }
        obj = window.SuperMap.CanvasLayer.prototype.clone.apply(me, [obj]);
        obj._timeoutId = null;
        return obj;
    },
    /**
     * Method: getTileUrl
     * 获取每个tile的图片url
     *
     * Parameters:
     * xyz - {Object}
     */
    getTileUrl: function(xyz) {
        var me = this;
        var proj = this.projection;
        if (proj.getCode) {
            proj = proj.getCode();
        }
        if (proj == 'EPSG:4326') {
            var proj = 'c';
        } else {
            var proj = 'w';
        }
        var x = xyz.x;
        var y = xyz.y;
        var z = xyz.z + me.zOffset;
        var num = Math.abs((xyz.x + xyz.y) % 7);
        var lt = this.layerType;
        if (this.isLabel) {
            if (this.layerType == 'vec') lt = 'cva';
            if (this.layerType == 'img') lt = 'cia';
            if (this.layerType == 'ter') lt = 'cta';
        }
        var url = window.SuperMap.String.format(me.url, {
            num: num,
            x: x,
            y: y,
            z: z,
            proj: proj,
            type: lt
        });
        return url;
    },
    /**
     * Method: setMap
     * Set the map property for the layer. This is done through an accessor
     *     so that subclasses can override this and take special action once
     *     they have their map variable set.
     *
     *     Here we take care to bring over any of the necessary default
     *     properties from the map.
     *
     * Parameters:
     * map - {<window.SuperMap.Map>}
     */
    setMap: function(map) {
        window.SuperMap.CanvasLayer.prototype.setMap.apply(this, [map]);
        var proCode = null;
        var proj = this.projection || map.projection;
        if (proj) {
            if (proj.getCode) {
                proCode = proj.getCode();
            } else {
                proCode = proj;
            }
        }
        this.setTiandituParam(proCode);
    },
    /**
     * Method: setTiandituParam
     * 设置出图相关参数
     *
     * Parameters:
     * projection - {String} 投影坐标系
     */
    setTiandituParam: function(projection) {
        var lt = this.layerType;
        if (lt == 'vec') {
            var resLen = 18;
            var resStart = 0;
            this.zOffset = 1;
            this.numZoomLevels = 18;
        } else if (lt == 'img') {
            var resLen = 17;
            var resStart = 0;
            this.zOffset = 1;
            this.numZoomLevels = 17;
        } else if (lt == 'ter') {
            var resLen = 13;
            var resStart = 0;
            this.zOffset = 1;
            this.numZoomLevels = 13;
        }
        if (projection == 'EPSG:4326') {
            var minX = -180;
            var minY = -90;
            var maxX = 180;
            var maxY = 90;
            //var maxResolution = 156543.0339;
            //var minResolution = 0.5971642833709717;
            var resolutions = [];
            for (var i = resStart; i < resLen; i++) {
                resolutions.push(1.40625 / 2 / Math.pow(2, i));
            }
            this.units = 'degree';
            this.projection = new window.SuperMap.Projection('EPSG:4326');
            this.maxExtent = new window.SuperMap.Bounds(minX, minY, maxX, maxY);
            this.tileOrigin = new window.SuperMap.LonLat(minX, maxY);
            this.resolutions = resolutions;
        } else {
            var minX = -20037508.3392;
            var minY = -20037508.3392;
            var maxX = 20037508.3392;
            var maxY = 20037508.3392;
            //var maxResolution = 156543.0339;
            //var minResolution = 0.5971642833709717;
            var resolutions = [];
            for (var i = resStart; i < resLen; i++) {
                resolutions.push(156543.0339 / 2 / Math.pow(2, i));
            }
            //this.numZoomLevels = 18;
            this.units = 'm';
            this.projection = new window.SuperMap.Projection('EPSG:3857');
            this.maxExtent = new window.SuperMap.Bounds(minX, minY, maxX, maxY);
            this.tileOrigin = new window.SuperMap.LonLat(minX, maxY);
            this.resolutions = resolutions;
        }
    },
    CLASS_NAME: 'window.SuperMap.Layer.Tianditu'
});
export default window.SuperMap.Layer.Tianditu;
